The Classic Editor plugin doesn't remove Gutenberg by default. This free addon changes that and then some.
Lean WP does a great job cleaning up the WordPress backend (Dashboard) and frontend!
Hides the Navigation Menu from the Customizer so as not to confuse anyone.
Clean up several unwanted things that the Yoast SEO plugin adds to your WordPress Dashboard.
Shows the latest Posts from a site of your choice in the top of the WordPress Dashboard.
This free WPML Addon removes the WP Menu Sync sub menu from the WPML Dashboard.